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Class Information
Number: 423/17
Name: Chemistry of inorganic compounds > Treating mixture to obtain metal containing compound > Radioactive metal (at. no. 84+ or radioactive isotope of another metal) > Actinide series metal (at. no. 89+) > Forming insoluble substance in liquid > Carbonate leaching
Description: Processes which include making a separation by using a carbonate as an active ingredient to leach, wash, or dissolve; see Glossary.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8636966 Compositions and methods for treating nuclear fuel Jan. 28, 2014
8506911 Compositions and methods for treating nuclear fuel Aug. 13, 2013
7749469 Process for recovering isolated uranium from spent nuclear fuel using a highly alkaline carbonate solution Jul. 6, 2010
7255798 Recycling of used perfluorosulfonic acid membranes Aug. 14, 2007
5640701 Method for remediating soil containing radioactive contaminants Jun. 17, 1997
5494648 Process for removing thorium and recovering vanadium from titanium chlorinator waste Feb. 27, 1996
5437848 Recovery of metal values from process residues Aug. 1, 1995
5384104 Uranium carbonate extraction process Jan. 24, 1995
5322644 Process for decontamination of radioactive materials Jun. 21, 1994
5223181 Process for selectively concentrating the radioactivity of thorium containing magnesium slag Jun. 29, 1993
5202062 Disposal method of radioactive wastes Apr. 13, 1993
4740359 Process for the recovery of uranium values in an extractive reprocessing process for irradiated nuclear fuels Apr. 26, 1988
4696768 Process for the separation of large amounts of uranium from small amounts of radioactive fission products, which are present in basic, aqueous carbonate containing solutions Sep. 29, 1987
4655936 Microbiological control in uranium processing Apr. 7, 1987
4652432 Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution Mar. 24, 1987
4652431 Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution Mar. 24, 1987
4649031 Process for recovering rare metals from the combustion residue of coal by digestion Mar. 10, 1987
4636367 Removal of radium from aqueous liquids Jan. 13, 1987
4634579 Selective removal of arsenical material in the course of an alkaline process for treating a uraniferous and/or molybdeniferous ore by means of a magnesium compound Jan. 6, 1987
4606894 Uranium recovery from carbonate leach liquors using carboxylic acid cation exchange resin Aug. 19, 1986
4587109 Process for the separate recovery of molybdenum and vanadium May. 6, 1986
4584184 Separation and recovery of molybdenum values from uranium process waste Apr. 22, 1986
4582688 Process for recovery of mineral values Apr. 15, 1986
4572581 In-situ recovery of mineral values Feb. 25, 1986
4549985 Waste disposal process Oct. 29, 1985
4489042 Process for recovery of mineral values from subterranean formations Dec. 18, 1984
4476099 Method of recovering uranium Oct. 9, 1984
4475772 Process for recovering uranium and other base metals Oct. 9, 1984
4473255 Magnesium bicarbonate as an in situ uranium lixiviant Sep. 25, 1984
4464345 Method of precipitating contaminants in a uranium leachate using ferri ions, complexing agent, and pH control Aug. 7, 1984
4460547 Separating actinide ions from aqueous, basic, carbonate containing solutions using mixed tertiary and quaternary amino anion exchange resins Jul. 17, 1984
4452490 Treatment of subterranean uranium-bearing formations Jun. 5, 1984
4451439 Process for the purification of solutions containing a sodium or potassium carbonate, sulphate, and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum May. 29, 1984
4451438 Process for recovering niobium and/or tantalum metal compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metals May. 29, 1984
4441993 Flotation process Apr. 10, 1984
4438077 Two stage selective oxidative leach method to separately recover uranium and refractory uranium-mineral complexes Mar. 20, 1984
4436704 Method of recovering uranium oxide from alkaline sodium uranyl carbonate solutions Mar. 13, 1984
4427236 In-situ uranium leaching Jan. 24, 1984
4423010 Process for the selective removal of arsenic in the course of the oxidizing attack by means of a carbonated liquor on a uraniferous ore containing same Dec. 27, 1983
4423009 Carbonate, sulphate and hydroxide or hydrogen carbonate Dec. 27, 1983
4418042 Ion exchange process using resins of high loading capacity, high chloride tolerance and rapid elution for uranium recovery Nov. 29, 1983
4411873 In-line regeneration of polythionate poisoned ion exchange resins Oct. 25, 1983
4410497 Separation of uranium from carbonate containing solutions thereof by direct precipitation Oct. 18, 1983
4405567 Uranium value leaching with ammonium carbonate and/or bicarbonate plus nitrate oxidant and optionally oxidation-catalytic metal compounds Sep. 20, 1983
4402921 Ammonium carbonate and/or bicarbonate plus alkaline chlorate oxidant for recovery of uranium values Sep. 6, 1983
4400359 Process for the hot oxidized attack on a uraniferous ore by a concentrated alkaline liquor with simultaneous uranium precipitation Aug. 23, 1983
4397819 Rejuvenation of the anion exchanger used for uranium recovery Aug. 9, 1983
4366126 Removal of molybdenum from uranium solutions Dec. 28, 1982
4346936 Treatment of subterranean uranium-bearing formations Aug. 31, 1982
4340253 Preflush-lixiviant process for solution mining of uranium ore beds Jul. 20, 1982

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